Design And Construction Of A Simple Burglar Alarm System

ABSTRACT

This work present the design, construction and testing of a simple burglar alarmactivated by light, break beam and pressure sensor. The principle of operation of this burglar alarm is simple. When the ray of light  falls on the light sensor the alarm is triggered and the siren begins to operate, the speaker beeps and the flasher (light) flashes. When an intruder walks  through the  break beam sensor the alarm is triggered and the siren begins to operate, the  speaker beeps and the flash light flashes. Likewise the pressure foot sensor has the same mode of operation. Whenever pressure is exerted on  the foot sensor the alarm is triggered and the siren begins to operate. The speaker beeps and the flasher (light) flashes. These actions thus alert the owner of the residence and/or security personnel of the presence of an intruder.